6840377111 has 2 divisors, whose sum is σ = 6840377112. Its totient is φ = 6840377110.

The previous prime is 6840377081. The next prime is 6840377129. The reversal of 6840377111 is 1117730486.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 6840377111 - 2²⁶ = 6773268247 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6840377711) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3420188555 + 3420188556.

It is an arithmetic number, because the mean of its divisors is an integer number (3420188556).

Almost surely, 2^6840377111 is an apocalyptic number.

6840377111 is a deficient number, since it is larger than the sum of its proper divisors (1).

6840377111 is an equidigital number, since it uses as much as digits as its factorization.

6840377111 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 28224, while the sum is 38.

The square root of 6840377111 is about 82706.5723567360. The cubic root of 6840377111 is about 1898.2788763785.

The spelling of 6840377111 in words is "six billion, eight hundred forty million, three hundred seventy-seven thousand, one hundred eleven".